from the GNU version of the Collaborative International Dictionary of English
- n. Lit., an eggshell; hence, an eggshell filled with confetti to be thrown during balls, carnivals, etc.
from The Century Dictionary and Cyclopedia
- n. A tall leguminous tree of Argentina, Cascaronia astragalina, having a corky bark under which is found a red gum. Its leaves, flowers, and pods possess a strong odor of rue.
Sorry, no etymologies found.
The cascaron tradition is said to have begun in Italy using empty eggshells filled with perfumed powder.